Well, most of the games that I play in are short, 1v1 or 2v2 scenario games in an enclosed space. As a result, they never last longer than 15 minutes or so, so I would have no problem leaving the Barricade "on" during the duration...remembering to turn it off, on the other hand, might take some practice
I can see some of the first mods being
(a.) activating the motor with the first fraction of the trigger pull instead of the switch
(b.) adding a disconnect switch/button which is mechanically activated by a custom holster
Anyway, I'm sure I'll be getting one (or more) eventually, because they should be excellent in mostly-stock office nerf.
I think that if you want to go with A., you should consider a 7.4v lipo for a battery (assuming the motor can take it). Should be pretty much instant motor on full, not to mention it should increase the range since this is a flywheel gun.